1. Liu, Jian, Changcheng Zhang, Zhaotan Cui, et al. "2-6 GHz small-size and high-efficiency GaN power amplifier," Electronics & Packaging, Vol. 23, No. 9, 090402, 2023. Google Scholar
2. Cui, Zhaotan, Zheng Chen, Pengbo Du, et al. "Design of X-band miniature package GaN power amplifier," Electronics & Packaging, Vol. 22, No. 6, 060202, 2022. Google Scholar
3. QORVO, Inc. QPA4501 [EB/OL], https:// www.qorvo.com/products/p/QPA4501, 2020.
4. Jiang, Wei, Cong Lu, Qian Lin, Wen Yuan Liu, and Jing Jin, "A high efficiency and broadband GaN PA," 2023 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 1-3, Qingdao, China, 2023.
5. Zheng, Zilong, Xiaojiang Yao, Zhengzheng Wang, Fuxin Xiang, Shenghui Fan, and Tubin Zhou, "2-6 GHz 30W GaN power amplifier using reactive matching technique," 2023 8th International Conference on Integrated Circuits and Microsystems (ICICM), 368-372, Nanjing, China, 2023.
6. Zhang, Xiaohan, Tao Wang, Lingyun Shi, Di Hua, and Zhiliang Hong, "A 7W, 2.5-5GHz wideband GaN PA with transformer-based matching network," 2023 IEEE 15th International Conference on ASIC (ASICON), 1-4, Nanjing, China, 2023.
7. Kim, Bumman, Doherty Power Amplifiers: From Fundamentals to Advanced Design Methods, Academic Press, 2018.
8. Qian , Tianle, Zhiqun Cheng, Chao Le, and Bangjie Zheng, "Design and implementation of a C-band GaN HEMT internally match power amplifiers," Journal of Microwaves, 1-4, Dec. 2023. Google Scholar
9. Wu, Jiasheng and Daomin Cai, "2~6 GHz compact GaN power amplifier MMICs with high PAE," Journal of Terahertz Science and Electronic Information Technology, Vol. 21, No. 8, 1054-1058, Aug. 2023. Google Scholar
10. Yao, Fengwei, "Design of novel high linearity power amplifier used in 5G," Modern Electronics Technique, Vol. 46, No. 22, 1-4, Nov. 2023. Google Scholar
11. Wang, Haoquan, Hao Guo, and Mingli Hao, "Design of a 2~6 GHz broadband power amplifier module," Application of Electronic Technique, Vol. 43, No. 7, 8-10, 2017. Google Scholar
12. Liu, Guohua, Yelong Jian, and Zhiqun Cheng, "Broadband high efficiency filtering doherty power amplifier based on GaN HEMT," Research and Exploration in Laboratory, Vol. 41, No. 05, 78-82, 2022. Google Scholar
13. Tang, Bowen and Gang Yu,Zhikang Lin,Yuehang Xu, "2-6GHz ultra-wideband GaN MMIC design," Journal of Microwaves, Vol. 36, No. S1, 172-174, 2020. Google Scholar
14. Saad, Walid, Mehdi Bennis, and Mingzhe Chen, "A vision of 6G wireless systems: Applications, trends, technologies, and open research problems," IEEE Network, Vol. 34, No. 3, 134-142, May/Jun. 2020. Google Scholar
15. Yaklaf, S., Khaled S. Tarmissi, and Nasar Aldian Ambark Shashoa, "6G mobile communications systems: Requirements, specifications, challenges, applications, and technologies," 2021 IEEE 1st International Maghreb Meeting of the Conference on Sciences and Techniques of Automatic Control and Computer Engineering MI-STA, 679-683, Tripoli, Libya, 2021.
16. Wiklundh, Kia and Peter Stenumgaard, "EMC challenges with 6G," 2022 International Symposium on Electromagnetic Compatibility --- EMC Europe, 19-24, Gothenburg, Sweden, 2022.
17. Wiklundh, Kia and Peter Stenumgaard, "EMC challenges for the era of massive Internet of Things," IEEE Electromagnetic Compatibility Magazine, Vol. 8, No. 2, 65-74, Jul. 2019. Google Scholar